ECD T90 Instruction Manual
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Contents
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Page 21 Model T803.0 OPERATIONThe ECD Model T80 transmitter is an intelligent, single or dualchannel multi-parameter transmitter designed for the onlinecontinuous measurement of pH, ORP, pION, conductivity, resistivityor Dissolved Oxygen in a general purpose industrial environment.The Model T80 transmitter digitally communicates with any ECD S80digital sensor. The measurement identity is contained in thesensor’s memory. When an S80 sensor is connected to thetransmitter it automatically configures the transmitter’s menus anddisplay screens to the measured parameter.3.1 KEYSThe functions associated with each key are displayed on the screen, above the key for the Selection AdjustmentKeys and to the left of the key for the HOME and BACK keys. Press any Selection Adjustment key twice withinone second to enter the HOME Menu Screen.3.1.1 HOME/EXIT KEYThe HOME key performs two functions, it selects which Home Screen is displayed and it returns the activescreen to the HOME Menu Screen from anywhere inside the menu structure.Three Display screens are available:1. DATA SCREEN: Displays the measurement type, numerical value,engineering Units, % Output of the 4-20 mA channel and temperature.2. mV SCREEN: Displays the measurement type, the sensor’s raw millivoltValue, % Output of the 4-20 mA channel and temperature.3. GRAF SCREEN: Displays a Graphical representation of the 4-20 mA channel% Output, the measurement type, the engineering units, and temperature.Only one of the three graphical display styles is available through the HOMEkey, either the Bar, Gauge or Line display. Choose which style will bedisplayed in the Graph Menu. (pathway to Graph Menu: CONFIG → XMTR→ LCD → Graph menu)Each of the above screens also displays the condition of the optional Alarm Relays,black if energized and white if de-energized.The HOME key changes to the EXIT key in the HOME Menu Screen, pressing EXIT prompts the user to “SaveChanges” YES/NO when exiting the HOME Menu. YES applies any changes made inthe menus, NO exits the HOME Menu without applying any changes made in themenus.3.1.2 BACK/HOLD KEYThe BACK key changes the screen to the previously displayed screen when inside amenu, it moves BACK one screen. On a dual channel transmitter it toggles between the PV1, PV2 and DualChannel Screens. The HOLD key toggles the output HOLD function ON/OFF in the MENU HOME screen. |
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